摘要:

The illumination of the SbSI crystal in the range of its intrinsic photosensitivity results in the change of the temperature hysteresis value of the phase transition. This effect may be accounted for by the dependence of the surface energy of the nucleus of the new phase on the carrier density in the crystal.

ISSN:0003-6951    

DOI:10.1063/1.1652739

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

An experiment to record a holographic motion picture is described. The source of illumination is a cw ruby laser operated in the repetitivelyQ‐switched mode. The film was recorded at the rate of 20 frames per second on 100 ft of 70‐mm film, transported by a conventional 70‐mm sequential‐still camera. The subject of the movie was a group of tropical fish.

ISSN:0003-6951    

DOI:10.1063/1.1652740

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

Transfer of acoustic surface waves between two noncontacting surfaces by means of passive, co‐directional piezoelectric coupling is achieved in LiNbO3. Minimum coupling loss is less than 3 dB. When the surfaces are maintained parallel, periodic variation of insertion loss with coupling length is observed. Measurements are in close agreement with predictions using coupled mode theory. A 100‐MHz delay line with a mechanically variable, nondispersive differential delay of 6.1 &mgr;sec and a total insertion loss less than 17 dB which utilizes this coupling mechanism is reported.

ISSN:0003-6951    

DOI:10.1063/1.1652741

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

It is shown that oscillation in Ar+on the 4881‐Å line produces polarization source terms in the region of the 5147‐Å oscillation. These source terms may profoundly influence the mode spectra and the power output of that line. Certain earlier experimental results may be understood in terms of these concepts. We also give further support to the presented mechanism through new experiments.

ISSN:0003-6951    

DOI:10.1063/1.1652742

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

A model is presented for the measurement of the voltage drop across a plasma anodized germanium film. This model proposes that the potential at the plasma—oxide interface is controlled by the plasma. From this model the anodization constant of germanium has been determed to be 31 Å/V.

ISSN:0003-6951    

DOI:10.1063/1.1652743

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

A mixture of 0.4‐Torr SO2with 0.4‐Torr He lases at 70.98, 66.14, 51.89, and 46.44 cm−1when excited by a pulsed discharge. The previous report of cw oscillation on the first and the third of these lines is confirmed.

ISSN:0003-6951    

DOI:10.1063/1.1652744

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

A shift of about 100°C is observed in the isochronal annealing temperature of the dominant annealing stage inp‐on‐nsilicon solar cells with a heavy donor concentration of 1017cm−3in thenregion and low oxygen concentration in the crystal.

ISSN:0003-6951    

DOI:10.1063/1.1652745

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

Reversible phase holograms have been made on thin films of MnBi by Curie‐point writing. Magnetic holograms are formed when the interference pattern, created by conventional holographic techniques, heats the film above its Curie temperature, causing a magnetic domain pattern that corresponds to the interference pattern. The magnetic hologram can be nondestructively read out, without the use of polarizers or analyzers, by means of either the Faraday or Kerr magneto‐optic effect. The hologram can be erased by application of a magnetic field.

ISSN:0003-6951    

DOI:10.1063/1.1652746

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

Twenty‐four lasing lines have been found in an H2S laser in the range 33 to 225 &mgr;, three lines in SO2at 141, 151, and 215 &mgr;, and two lines in OCS at 123 and 132 &mgr;. Comparing H2S to H2O, the pulse power outputs are about equal and the lines about as numerous. However, while the H2O lines essentially lase during the exciting 5‐&mgr;sec current pulse, the H2S lines turn on about 20–30 &mgr;sec after the 5‐&mgr;sec current pulse and last for 20 to 100 &mgr;sec.

ISSN:0003-6951    

DOI:10.1063/1.1652747

出版商:AIP    

年代:1969

数据来源: AIP

摘要:

Self‐focusing of a cw argon laser beam due to absorptive heating in glass is reported here, with particular emphasis on the time dependence.

ISSN:0003-6951    

DOI:10.1063/1.1652748

出版商:AIP    

年代:1969

数据来源: AIP